HBsAg Report Format
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What is the HBsAg Test?
The Hepatitis B Surface Antigen (HBsAg) test detects the presence of Hepatitis B virus surface antigen in the blood. It is the earliest marker of active Hepatitis B infection—either acute or chronic.
What is an HBsAg Report Format?
An HBsAg report indicates whether the person currently has a Hepatitis B infection. It is a screening tool for diagnosing infection, monitoring chronic carriers, and ensuring safe blood transfusions.
Tests Included in HBsAg Report
Test | Description |
HBsAg | Detects the surface antigen of the Hepatitis B virus, indicating active infection. |
Key Parts of an HBsAg Report
Key Part | Description |
Sample Type | Serum or plasma. |
Test Method | Common methods include ELISA or rapid immunochromatographic assay. |
Result | Reported as Reactive (Positive), Non-Reactive (Negative), or Indeterminate. |
Interpretation | Explains the result and guides further evaluation or follow-up. |
Reference Range for HBsAg Report
Result | Interpretation |
Non-Reactive | No Hepatitis B surface antigen detected |
Reactive | HBsAg detected—indicates active Hepatitis B infection |
Indeterminate | Unclear result—repeat testing may be needed |
Parameters to Consider in HBsAg Report
Parameter | Interpretation |
Reactive HBsAg | Indicates acute or chronic Hepatitis B infection—needs further evaluation (e.g., HBV DNA, HBeAg). |
Non-Reactive HBsAg | No current infection—may still require vaccination or anti-HBs testing. |
Confirmatory Tests | HBeAg, anti-HBc IgM, and HBV DNA are needed to stage the infection. |
Guidelines for HBsAg Report Format
Guideline | Description |
Result Confidentiality | Follow privacy protocols due to infectious disease status. |
Follow-Up Testing | Recommend HBV DNA or liver function tests if reactive. |
Interpretation Timing | Acute infection: HBsAg appears within 1–10 weeks post-exposure. Chronic infection: HBsAg persists >6 months. |
What Do the Results Mean?
Result Type | Interpretation |
HBsAg Negative | No evidence of current Hepatitis B infection. |
HBsAg Positive | Indicates an active infection—further tests required to determine acute or chronic status. |
Indeterminate | May be due to early infection, low antigen level, or technical issue—retesting advised. |
HBsAg Report Interpretation
Test | Interpretation |
HBsAg | Detects current Hepatitis B infection; essential for diagnosis, carrier screening, and public health safety. Follow-up with HBV profile testing is recommended for positive cases. |
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